Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 292 insertions, 0 deletions

diff --git a/sw/inc/textboxhelper.hxx b/sw/inc/textboxhelper.hxx
new file mode 100644
index 000000000..ebf329342
--- /dev/null
+++ b/sw/inc/textboxhelper.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDED_SW_INC_TEXTBOXHELPER_HXX
+#define INCLUDED_SW_INC_TEXTBOXHELPER_HXX
+
+#include <map>
+#include <set>
+#include <vector>
+
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Type.h>
+#include <com/sun/star/text/TextContentAnchorType.hpp>
+#include <svx/swframetypes.hxx>
+
+#include "swdllapi.h"
+
+class SdrPage;
+class SdrObject;
+class SfxItemSet;
+class SwFrameFormat;
+class SwFrameFormats;
+class SwFormatAnchor;
+class SwFormatContent;
+class SwDoc;
+namespace tools
+{
+class Rectangle;
+}
+class ZSortFly;
+namespace com::sun::star::drawing
+{
+class XShape;
+}
+namespace com::sun::star::text
+{
+class XTextFrame;
+}
+
+/**
+ * A TextBox is a TextFrame, that is tied to a drawinglayer shape.
+ *
+ * This class provides helper methods to create, query and maintain such
+ * TextBoxes.
+ */
+class SW_DLLPUBLIC SwTextBoxHelper
+{
+public:
+    /// Maps a draw format to a fly format.
+    using SavedLink = std::map<const SwFrameFormat*, const SwFrameFormat*>;
+    /// Maps a draw format to content.
+    using SavedContent = std::map<const SwFrameFormat*, SwFormatContent>;
+    /// Create a TextBox for a shape. If the third parameter is true,
+    /// the original text in the shape will be copied to the frame
+    /// The textbox is created for the shape given by the pObject parameter.
+    static void create(SwFrameFormat* pShape, SdrObject* pObject, bool bCopyText = false);
+    /// Sets the given textframe as textbox for the given (group member) shape.
+    static void set(SwFrameFormat* pShape, SdrObject* pObject,
+                    css::uno::Reference<css::text::XTextFrame> xNew);
+    /// Destroy a TextBox for a shape. If the format has more textboxes
+    /// like group shapes, it will destroy only that textbox what belongs
+    /// to the given pObject shape.
+    static void destroy(const SwFrameFormat* pShape, const SdrObject* pObject);
+    /// Get interface of a shape's TextBox, if there is any.
+    static css::uno::Any queryInterface(const SwFrameFormat* pShape, const css::uno::Type& rType,
+                                        SdrObject* pObj);
+
+    /// Sync property of TextBox with the one of the shape.
+    static void syncProperty(SwFrameFormat* pShape, sal_uInt16 nWID, sal_uInt8 nMemberID,
+                             const css::uno::Any& rValue, SdrObject* pObj = nullptr);
+    /// Does the same, but works on properties which lack an sw-specific WID / MemberID.
+    static void syncProperty(SwFrameFormat* pShape, std::u16string_view rPropertyName,
+                             const css::uno::Any& rValue, SdrObject* pObj = nullptr);
+    /// Get a property of the underlying TextFrame.
+    static void getProperty(SwFrameFormat const* pShape, sal_uInt16 nWID, sal_uInt8 nMemberID,
+                            css::uno::Any& rValue);
+    /// Get a property of the underlying TextFrame.
+    static css::uno::Any getProperty(SwFrameFormat const* pShape, const OUString& rPropName);
+
+    /// There are two types of enum of anchor type, so this function maps this.
+    static css::text::TextContentAnchorType mapAnchorType(const RndStdIds& rAnchorID);
+
+    /// Similar to syncProperty(), but used by the internal API (e.g. for UI purposes).
+    static void syncFlyFrameAttr(SwFrameFormat& rShape, SfxItemSet const& rSet, SdrObject* pObj);
+
+    /// Copy shape attributes to the text frame
+    static void updateTextBoxMargin(SdrObject* pObj);
+
+    /// Sets the anchor of the associated textframe of the given shape, and
+    /// returns true on success.
+    static bool changeAnchor(SwFrameFormat* pShape, SdrObject* pObj);
+
+    /// Does the positioning for the associated textframe of the shape, and
+    /// returns true on success.
+    static bool doTextBoxPositioning(SwFrameFormat* pShape, SdrObject* pObj);
+
+    /// Sets the correct size of textframe depending on the given SdrObject.
+    static bool syncTextBoxSize(SwFrameFormat* pShape, SdrObject* pObj);
+
+    // Returns true on success. Synchronize z-order of the text frame of the given textbox
+    // by setting it one level higher than the z-order of the shape of the textbox.
+    static bool DoTextBoxZOrderCorrection(SwFrameFormat* pShape, const SdrObject* pObj);
+
+    /**
+     * If we have an associated TextFrame, then return that.
+     *
+     * If we have more textboxes for this format (group shape), that one will be
+     * returned, what belongs to the pObject.
+     *
+     * @param nType Expected frame format type.
+     *              Valid types are RES_DRAWFRMFMT and RES_FLYFRMFMT.
+     *
+     * @see isTextBox
+     */
+    static SwFrameFormat* getOtherTextBoxFormat(const SwFrameFormat* pFormat, sal_uInt16 nType,
+                                                const SdrObject* pObject = nullptr);
+    /// If we have an associated TextFrame, then return that.
+    static SwFrameFormat*
+    getOtherTextBoxFormat(css::uno::Reference<css::drawing::XShape> const& xShape);
+    /// If we have an associated TextFrame, then return its XTextFrame.
+    static css::uno::Reference<css::text::XTextFrame>
+    getUnoTextFrame(css::uno::Reference<css::drawing::XShape> const& xShape);
+    /// Return the textbox rectangle of a draw shape (in relative twips).
+    static tools::Rectangle getRelativeTextRectangle(SdrObject* pShape);
+
+    /**
+     * Is the frame format a text box?
+     *
+     * A text box consists of a coupled fly and draw format. Most times you
+     * just want to check for a single type, otherwise you get duplicate results.
+     *
+     * @param pFormat: Is this format have a textbox?
+     *
+     * @param nType: Expected frame format input type.
+     *              Valid types are RES_DRAWFRMFMT and RES_FLYFRMFMT.
+     *
+     * @param pObject: If the pFormat has more textboxes than one, like
+     *                 groupshapes, the textbox what belongs to the given
+     *                 pObject will be inspected. If this parameter nullptr,
+     *                 the textbox what belongs to the pObject will only be inspected.
+     */
+    static bool isTextBox(const SwFrameFormat* pFormat, sal_uInt16 nType,
+                          const SdrObject* pObject = nullptr);
+
+    /// Returns true if the SdrObject has a SwTextFrame otherwise false
+    static bool hasTextFrame(const SdrObject* pObj);
+
+    /// Count number of shapes in the document, excluding TextBoxes.
+    static sal_Int32 getCount(const SwDoc& rDoc);
+    /// Count number of shapes on the page, excluding TextBoxes.
+    static sal_Int32 getCount(SdrPage const* pPage);
+    /// Get a shape by index, excluding TextBoxes.
+    ///
+    /// @throws css::lang::IndexOutOfBoundsException
+    static css::uno::Any getByIndex(SdrPage const* pPage, sal_Int32 nIndex);
+    /// Get the order of the shape, excluding TextBoxes.
+    static sal_Int32 getOrdNum(const SdrObject* pObject);
+    /// If pTextBox is a textbox, then set rWrapThrough to the surround of its shape.
+    static void getShapeWrapThrough(const SwFrameFormat* pTextBox, bool& rWrapThrough);
+
+    /// Saves the current shape -> textbox links in a map, so they can be restored later.
+    static void saveLinks(const SwFrameFormats& rFormats,
+                          std::map<const SwFrameFormat*, const SwFrameFormat*>& rLinks);
+    /// Undo the effect of saveLinks() + individual resetLink() calls.
+    static void restoreLinks(std::set<ZSortFly>& rOld, std::vector<SwFrameFormat*>& rNew,
+                             SavedLink& rSavedLinks);
+
+    /// Calls the method given by pFunc with every textboxes of the group given by pFormat.
+    static void synchronizeGroupTextBoxProperty(bool pFunc(SwFrameFormat*, SdrObject*),
+                                                SwFrameFormat* pFormat, SdrObject* pObj);
+
+    /// Collect all textboxes of the group given by the pGroupObj Parameter. Returns with a
+    /// vector filled with the textboxes.
+    static std::vector<SwFrameFormat*> CollectTextBoxes(const SdrObject* pGroupObject,
+                                                        SwFrameFormat* pFormat);
+
+    // Compares the anchor of the first and second given formats, and decides whether sync needed.
+    static bool isAnchorSyncNeeded(const SwFrameFormat* pFirst, const SwFrameFormat* pSecond);
+};
+
+/// Textboxes are basically textframe + shape pairs. This means one shape has one frame.
+/// This is not enough for group shapes, because they have only one shape format and
+/// can have many frame formats. This class provides if there is a group shape for example,
+/// it can have multiple textboxes.
+class SwTextBoxNode
+{
+    friend class SwTextBoxLockGuard;
+
+    // One TextBox-entry
+    struct SwTextBoxElement
+    {
+        // The textframe format
+        SwFrameFormat* m_pTextBoxFormat;
+        // The Draw object where the textbox belongs to
+        SdrObject* m_pDrawObject;
+    };
+
+    // This vector stores the textboxes what belongs to this node
+    std::vector<SwTextBoxElement> m_pTextBoxes;
+    // This is the pointer to the shape format, which has this node
+    // (and the textboxes)
+    SwFrameFormat* m_pOwnerShapeFormat;
+
+    // Prevents oscillating during recursive clone calling.
+    mutable bool m_bIsCloningInProgress;
+
+    // Protection against looping
+    bool m_bLock;
+
+public:
+    // Not needed.
+    SwTextBoxNode() = delete;
+
+    // ctor
+    SwTextBoxNode(SwFrameFormat* pOwnerShapeFormat);
+    // dtor
+    ~SwTextBoxNode();
+
+    // default copy ctor is enough
+    SwTextBoxNode(const SwTextBoxNode&) = default;
+
+    // This method adds a textbox entry to the shape
+    // Parameters:
+    //     pDrawObject: The shape what the textbox be added to.
+    //     pNewTextBox: The newly created textbox format what will be added to the shape.
+    void AddTextBox(SdrObject* pDrawObject, SwFrameFormat* pNewTextBox);
+
+    // This will remove the textbox entry.
+    // Parameters:
+    //     pDrawObject: The shape which have the textbox to be deleted.
+    void DelTextBox(const SdrObject* pDrawObject, bool bDelFromDoc = false);
+
+    // This will remove the textbox entry.
+    // Parameters:
+    //     pTextBox: The textbox what have to be deleted.
+    void DelTextBox(const SwFrameFormat* pTextBox, bool bDelFromDoc = false);
+
+    // This will return with the frame format of the textbox what belongs
+    // to the given shape (pDrawObject)
+    SwFrameFormat* GetTextBox(const SdrObject* pDrawObject) const;
+
+    // Clears all textboxes of this node from the doc and also from here.
+    void ClearAll();
+
+    // If this is a group shape, that returns true.
+    bool IsGroupTextBox() const;
+
+    // This returns with the shape what this class belongs to.
+    SwFrameFormat* GetOwnerShape() { return m_pOwnerShapeFormat; };
+
+    // This will give the current number of textboxes.
+    size_t GetTextBoxCount() const { return m_pTextBoxes.size(); };
+
+    // Returns with a const collection of textboxes owned by this node.
+    std::map<SdrObject*, SwFrameFormat*> GetAllTextBoxes() const;
+
+    // Does the copy, and assign of all textboxes of this node to the given format.
+    // Important: The given format has to be a shape-format, and must have same structure
+    // as the owner shape has. If the structure different, the cloning will be aborted.
+    void Clone(SwDoc* pDoc, const SwFormatAnchor& rNewAnc, SwFrameFormat* o_pTarget, bool bSetAttr,
+               bool bMakeFrame) const;
+
+private:
+    void Clone_Impl(SwDoc* pDoc, const SwFormatAnchor& rNewAnc, SwFrameFormat* o_pTarget,
+                    const SdrObject* pSrcObj, SdrObject* pDestObj, bool bSetAttr,
+                    bool bMakeFrame) const;
+};
+
+// Helper class for preventing unwanted sync calls.
+class SwTextBoxLockGuard
+{
+    SwTextBoxNode& m_rTextBoxes;
+
+public:
+    SwTextBoxLockGuard(SwTextBoxNode& rTextBoxes)
+        : m_rTextBoxes(rTextBoxes)
+    {
+        m_rTextBoxes.m_bLock = true;
+    }
+
+    ~SwTextBoxLockGuard() { m_rTextBoxes.m_bLock = false; }
+};
+
+#endif // INCLUDED_SW_INC_TEXTBOXHELPER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */